Trochidae

plural noun

Troch·​i·​dae

ˈträkəˌdē

: a family of marine gastropod mollusks (suborder Rhipidoglossa) with a conical operculate shell flattened at the base and having an oblique aperture and a very lustrous nacreous lining see top shell, trochus

Word History

Etymology

New Latin, from Trochus, type genus + -idae

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